The all-red, strapless ensemble featured a middle, thigh-high leg slit, which served as the perfect portal for the actress to show off her matching red, open-toed shoes (Picture by: Valarie Goodloe / Splash News)

Nominated in the Best Actress category at Sunday’s show, the ‘Gone Girl’ star’s pale skin looked radiant against the dress’ bold color, and she showed off her fresh-faced looked with a slicked back updo. (Picture by: Valarie Goodloe / Splash News)

Let’s not forget to mention, either, that Rosamund gave birth to her second child, a son, just two months ago in December. Um….WOW! (Picture by: Valarie Goodloe / Splash News)

Chelsea and Rosamund met when they were both studying at Oxford University and quickly bonded over their many common interests, including the German language, in which they’re both fluent. “They became really close and hung out a long,” says a source. “They’d sometimes speak to each other in German.”

The friendship lasted right up until the 2008 election, when Chelsea’s mom, Hilary Clinton, was campaigning against Barack Obama. “They had a talk one night about politics, and Rosamund made it clear that she preferred Obamas’ political beliefs over Hilary’s,” the insider explains. “Chelsea really took it to heart.”

The highly-anticipated first trailer for the film adaptation if Gillian Flynn’s novel Gone Girl is finally here! In the film, Ben Affleck stars plays Nick Dunne, a troubled man who is the prime suspect in the murder of his wife, Amy.

In the trailer, we see bits and pieces of the search for Rosamund Pike’s character, who goes missing on the morning of she and Nick’s first wedding anniversary. Like with the book, there’s also flashbacks, giving us a glimpse of the couple’s tumultuous relationship.